GNU/Linux: what it is, how it works, and how a distribution is built
A complete introduction to GNU/Linux: GNU vs. Linux, the kernel, distributions, systemd, terminal, desktops, package managers, security, containers, and current distributions.
Tag: ubuntu
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How to install Ubuntu 20.04 LTS from scratch: a guide for legacy systems
A current guide to installing Ubuntu 20.04.6 LTS for compatibility labs and legacy systems, including ESM coverage, storage, updates, and the supported upgrade path.
How to create a GNU/Linux virtual machine in VirtualBox 7.2
Create a GNU/Linux VM in VirtualBox 7.2 using Ubuntu 26.04.1 LTS as the example, with current guidance for RAM, CPU, storage, UEFI, NAT, and Guest Additions.